Difference between instantiation and specialization in c++ templates

Question

What is the difference between specialization and instantiation in context of C++ templates. From what I have read so far the following is what I have understood about speci

Answer 1

4 concepts:

(implicit) instantiation: this is what you refer to as instantiation

explicit instantiation:: this is when you tell the compiler to instantiate the template with given types, like this

template Struct; //used to control the PLACE where the template is inst-ed

(explicit )specialization: this is what you refer to as specialization

partial specialization this is when you give an alternative definition to a template for a subset of types, like this:

template class Struct {...} //partial specialization for pointers